﻿/*
	Copyright (C) 2019 Zongming Liu <1849059316@qq.com>

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.
	
	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.
	
	You should have received a copy of the GNU General Public License along
	with this program; if not, write to the Free Software Foundation, Inc.,
	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#ifndef EventListener_h__
#define EventListener_h__

#include <functional>
#include <memory>
#include <string>
#include "../utility/MacroTool.h"

namespace SkyEngine2d
{
	class IEvent;
	class InputEventDispatcher;
	class Node;
	
	//! 输入事件监听器
	class InputEventListener
	{
	public:
	
		//! 事件监听器类型 
		enum class Type
		{
			EventListenerType_Unknown,
			EventListenerType_Keybord,
			EventListenerType_Mouse
		};
	
	protected:
	
		InputEventListener(Type t);
		virtual void onEvent(IEvent * event) = 0;
	public:
	
		virtual ~InputEventListener();
	
		Type	getType();
		void	setAssociatedNode(Node* node);
		Node*	getAssociatedNode()const;
		void	setPriority(int priority);
		int		getPriority()const;
	
	private:
		Type m_type;
		Node* m_node;
		int  m_priority;
		friend class InputEventDispatcher;
	};
	
}

#endif // EventListener_h__
